1654940798 has 12 divisors (see below), whose sum is σ = 2887702992. Its totient is φ = 709260300.

The previous prime is 1654940761. The next prime is 1654940801. The reversal of 1654940798 is 8970494561.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8443478 + ... + 8443673.

It is an arithmetic number, because the mean of its divisors is an integer number (240641916).

Almost surely, 2^1654940798 is an apocalyptic number.

1654940798 is a deficient number, since it is larger than the sum of its proper divisors (1232762194).

1654940798 is a wasteful number, since it uses less digits than its factorization.

1654940798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16887167 (or 16887160 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 1654940798 is about 40680.9635824915. The cubic root of 1654940798 is about 1182.8440441914.

The spelling of 1654940798 in words is "one billion, six hundred fifty-four million, nine hundred forty thousand, seven hundred ninety-eight".